Virtual File Modification System (vQmod)

Have you ever thought of modifying the core of any framework? Then vQMod is the best way to do it.

“vQmod™” (aka Virtual Quick Mod) is an override system designed to avoid having to change core files. The concept is quite simple… Instead of making changes to the core files directly, the changes are created as xml search/replace script files. These script files are parsed during page load as each “source” core file is loaded with the “include” or “require” php functions. The source is then patched with the script file changes, and saved to a temp file. That temp file is then substituted for the original during execution. The original source file is never altered. This res ults in a “virtual” change to the core during execution without any actual modification to the core files.

Features

This system can be used for any php script, forum, shopping cart, cms, etc. Anywhere custom modifications are made for reuse. The logging option is invaluable for debugging understanding exactly what is happening.

For example,

‘Replace’ Example

Input

$var = 'ABC';

Script



<?xml version="1.0" encoding="UTF-8"?>

<modification>

        <id>Replace ABC with 123</id>

        <version>1.0</version>

        <vqmver>1.0.8</vqmver>

        <author>xxx</author>

        <file name="path/to/myfile.php">

                <operation>

                        <search position="replace"><![CDATA[

                        $var = 'ABC';

                        ]]></search>

                        <add><![CDATA[

                        $var = '123';

                        ]]></add>

                </operation>

        </file>

</modification>

Output

$var = ‘123’;